26343840 has 96 divisors (see below), whose sum is σ = 84260736. Its totient is φ = 6917120.

The previous prime is 26343833. The next prime is 26343841. The reversal of 26343840 is 4834362.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 26343798 and 26343807.

It is not an unprimeable number, because it can be changed into a prime (26343841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33694 + ... + 34466.

It is an arithmetic number, because the mean of its divisors is an integer number (877716).

Almost surely, 2^26343840 is an apocalyptic number.

26343840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26343840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42130368).

26343840 is an abundant number, since it is smaller than the sum of its proper divisors (57916896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26343840 is a wasteful number, since it uses less digits than its factorization.

26343840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 26343840 is about 5132.6250593629. The cubic root of 26343840 is about 297.5498209997.

The spelling of 26343840 in words is "twenty-six million, three hundred forty-three thousand, eight hundred forty".